RELATIONSHIP BETWEEN PARTNER GROUPS OF MSM AND HIV INFECTION

[Objective]To determine the relationship between partner groups of MSM and HIV infection.[Methods]A cross-sectional survey was conducted in Yibin and Luzhou,two cities of Sichuan province.Fifteen key MSM who were in good relationship among MSM were chosen as cores to recruit the partners by Limiting the recruited partners in each city,finally 405 MSM(30 groups)were investigated with questionnaire which contained social characteristics,knowledge about HIV/AIDS,self-efficacy of condom use,high risk sexual behaviors with different partners in the last 2 months,symptoms of depression and anxiety,and then they were all tested of HIV antibody.SPSS 13.0 was used for statistical analysis.[Results]The percentages of getting high school education or below,having been married,having a job in HIV-positive MSM were 74.2%,32.3%,83.9% respectively,which higher than the percentages(52.9%,17.1%,64.4%)in the HIV-negative MSM;and the percentage of being homosexual orientation in HIV-positive MSM was 45.2%,which was lower than that(67.1%)in HIV-negative MSM,all Chi Square Test showed significant differences;the percentage of MSM who were having commercial homosexual partners was 24.8%.In the MSM group who were closing contact to HIV-positive(including HIV-positive)in last 2 months,were more than that(14.5%)in other MSM groups.Among the man who had commercial homosexual partners at the last sexual behavior in this group,72.0% of them who did not use condom,which was more than that(38.6%)in other MSM,the differences were significant.In the MSM group shich had two or more HIV-positive,the percentage of MSM who had more female sexual partners(23.3%)and commercial homosexual partners(25.8%),which were higher than that(12.3% and 13.3%)in other groups during the last 2 months,Chi Square Test showed significant differences.And in the MSM group which had three or more HIV-positive,the percentage of MSM who have more female sexual partners(26.7%)and commercial homosexual partners(31.1%),which were higher than that(14.2% and 15.3%)in other groups during the last 2 months.When they had sex with commercial homosexual partners,primary homosexual partners and casual homosexual partners at last time,the rate of MSM having risk sexual behavior were 78.6%,84.6%,87.0% in the groups that had three or more HIV-positive,higher than that(43.6% 59.9%,53.2%)in other groups,Chi Square Test showed significant differences.[Conclusion]Not only are there some differences in HIV transmission between the middle city and small city,but also different sub-groups play different roles in HIV transmission.

Lu Rongrong1,2,Yi Dong1,Ding Xianbin2,Feng Liangui2,Xu Jing2,Xu Shiming2,Guo Xiaojia2,Zheng Jianqiong2,Yang Mingfang2(1Department of Health Statistics,College of Military Preventive Medicine,Third Military Medical University,Chongqing,400038;2 Division for AIDS/STD Control and Prevention,Chongqing Center for Disease Prevention and Control,Chongqing,400042,China);Trend of factors related to AIDS among HIV-infected MSM[J];Journal of Third Military Medical University;2011-14